Mix peanut butter and honey together until smooth. If you warm it gently first in the microwave or on the stovetop, it's easier to combine.

Stir in protein powder and flax or chia into peanut butter mixture until combined. You may have to use your hands for the best mixture. If it's too dry, add 1/2 tsp at a time of water or milk.

Divide batter and roll into 14 balls. If desired, you can roll in shredded coconut (not the fake sweet stuff), cocoa powder, or more ground flax or chia seed.